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Shock (mechanics) print that page

A mechanical or physical shock is a sudden acceleration or deceleration caused, for example, by impact, drop, kick, earthquake , or explosion . Shock is a transient physical excitation. Shock is usually measured by an accelerometer . This describes a shock pulse as a plot of acceleration

wikipedia.org | 2011/4/18 5:29:39

Shock absorber print that page


A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy . It is a type of dashpot . Contents 1 Nomenclature 2 Description 3 Explanation 4 Applications 4.1 Vehicle suspension 4.2 Structures 4.3 Electrical Generation

Bow shock (aerodynamics) print that page


A bow shock , also called a detached shock , is a curved, stationary shock wave that is found in supersonic flow past a finite body. Unlike an oblique shock , the bow shock is not necessarily attached to the tip of the body. Oblique shock angles are limited in formation and are based

Scramjet print that page


A scramjet ( s upersonic c ombustion ramjet ) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow. As in ramjets, a scramjet relies on high vehicle speed to forcefully compress and decelerate the incoming air before combustion (hence ram

Aircraft flight mechanics print that page

In aeronautics , aircraft flight mechanics is the study of the forces that act on an aircraft in flight, and the way the aircraft responds to those forces. [ 1 ] Aircraft flight mechanics are relevant to gliders , helicopters and aeroplanes . An Aeroplane (Airplane in US usage), is

wikipedia.org | 2011/2/1 18:59:52

Control line print that page


Models on lines and flying in circles predate manned flight. [ 1 ] Early versions merely constrained the model to fly in a circle but offered no control. This is known as Round-the-pole flying . The origins of control-line flight are obscure but the first person to use a recognizably modern

Aerodynamics print that page


flow around solid objects of various shapes. Evaluating the lift and drag on an airplane or the shock waves that form in front of the nose of a rocket are examples of external aerodynamics. Internal aerodynamics is the study of flow through passages in solid objects. For instance, internal

Hydraulic jump print that page


A hydraulic jump is a phenomenon in the science of hydraulics which is frequently observed in open channel flow such as rivers and spillways . When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise occurs in the liquid surface. The rapidly flowing liquid

Bond print that page

Queen , a 2000 High Court of Australia case [ edit ] Physical sciences Bond number , in fluid mechanics , a dimensionless number expressing the ratio of gravitational forces to surface tension forces Chemical bond , the physical phenomenon of chemical substances being held together by

wikipedia.org | 2011/7/29 11:57:45

John von Neumann print that pageTimeline of John von Neumann


Von Neumann was a pioneer of the application of operator theory to quantum mechanics , in the development of functional analysis , a principal member of the Manhattan Project and the Institute for Advanced Study in Princeton (as one of the few originally appointed), and a key figure in